Pith Number

pith:RRIJ326T

pith:2012:RRIJ326TX45VJVFXAGQ2UQ7YVC

not attested not anchored not stored refs pending

Thermalisation of light sterile neutrinos in the early universe

Irene Tamborra, Steen Hannestad, Thomas Tram

arxiv:1204.5861 v2 · 2012-04-26 · astro-ph.CO · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RRIJ326TX45VJVFXAGQ2UQ7YVC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:57:43.969865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c509debd3bf3b54d4b701a1aa43f8a8b84efbee2a0bfefdec3713118e4c53f6

Aliases

arxiv: 1204.5861 · arxiv_version: 1204.5861v2 · doi: 10.48550/arxiv.1204.5861 · pith_short_12: RRIJ326TX45V · pith_short_16: RRIJ326TX45VJVFX · pith_short_8: RRIJ326T

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RRIJ326TX45VJVFXAGQ2UQ7YVC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8c509debd3bf3b54d4b701a1aa43f8a8b84efbee2a0bfefdec3713118e4c53f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af622a09de5e50198be799263932ce4bdbab495f71abce655e1078845044ae6c",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-26T08:24:36Z",
    "title_canon_sha256": "57ac570ec72cee75c2684853e29a3b9ecea0de04bbcd646ba0d9e1a9781512a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5861",
    "kind": "arxiv",
    "version": 2
  }
}